//------------------------------------------------------------------------------
// The contents of this file are subject to the nopCommerce Public License Version 1.0 ("License"); you may not use this file except in compliance with the License.
// You may obtain a copy of the License at  http://www.nopCommerce.com/License.aspx. 
// 
// Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. 
// See the License for the specific language governing rights and limitations under the License.
// 
// The Original Code is nopCommerce.
// The Initial Developer of the Original Code is NopSolutions.
// All Rights Reserved.
// 
// Contributor(s): _______. 
//------------------------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Web.UI;
using NopSolutions.NopCommerce.Common.Utils;
using NopSolutions.NopCommerce.BusinessLogic.Model;

namespace NopSolutions.NopCommerce.Web.Administration.Modules
{
    public partial class CategoryDiscountControl : BaseNopAdministrationUserControl
    {
        private void BindData() {
            List<int> _discountIds = new List<int>();

            var category = this.CategoryService.GetCategoryById(this.CategoryId);
            if (category != null) {
                var discounts = category.Discounts;
                foreach (Discount dis in discounts)
                    _discountIds.Add(dis.DiscountId);
            }

            DiscountMappingControl.SelectedDiscountIds = _discountIds;
            DiscountMappingControl.BindData(DiscountTypeEnum.AssignedToCategories);
        }

        protected void Page_Load(object sender, EventArgs e) {
            if (!Page.IsPostBack) {
                this.BindData();
            }
        }

        public void SaveInfo() {
            SaveInfo(this.CategoryId);
        }

        public void SaveInfo(int catId) {
            var category = this.CategoryService.GetCategoryById(catId);

            if (category != null) {
                List<int> selectedDiscountIds = this.DiscountMappingControl.SelectedDiscountIds;
                var existingDiscounts = this.DiscountService.GetDiscountsByCategoryId(category.CategoryId);

                var allDiscounts = this.DiscountService.GetAllDiscounts(DiscountTypeEnum.AssignedToCategories);
                foreach (Discount discount in allDiscounts) {
                    if (selectedDiscountIds.Contains(discount.DiscountId)) {
                        if (existingDiscounts.Find(d => d.DiscountId == discount.DiscountId) == null) {
                            this.DiscountService.AddDiscountToCategory(category.CategoryId, discount.DiscountId);
                        }
                    } else {
                        if (existingDiscounts.Find(d => d.DiscountId == discount.DiscountId) != null) {
                            this.DiscountService.RemoveDiscountFromCategory(category.CategoryId, discount.DiscountId);
                        }
                    }
                }
            }
        }

        public int CategoryId {
            get {
                return CommonHelper.QueryStringInt("CategoryId");
            }
        }
    }
}